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30 lines
677 B
Go
30 lines
677 B
Go
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package indicator
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import "github.com/c9s/bbgo/pkg/types"
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type KLinePriceMapper func(k types.KLine) float64
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func KLineOpenPriceMapper(k types.KLine) float64 {
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return k.Open.Float64()
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}
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func KLineClosePriceMapper(k types.KLine) float64 {
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return k.Close.Float64()
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}
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func KLineTypicalPriceMapper(k types.KLine) float64 {
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return (k.High.Float64() + k.Low.Float64() + k.Close.Float64()) / 3.
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}
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func MapKLinePrice(kLines []types.KLine, f KLinePriceMapper) (prices []float64) {
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for _, k := range kLines {
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prices = append(prices, f(k))
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}
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return prices
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}
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type KLineWindowUpdater interface {
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OnKLineWindowUpdate(func(interval types.Interval, window types.KLineWindow))
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}
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